Spring-wheel.



S. CARPENTER.

SPRING WHEEL.

` APPLlcAfTLoN FILED MAR.16.1918.

LSQPS; v l Patented Apr. 29,1919.

' S. CARPENTER.

SPRING WHEEL. APPLICATION HLED MAn.|,1918.

25 -hicle STEPHEN CENTER, QF SGUTH GESON, PENNSYLV E SPMNGWIEUEEL.

' Patenten am. ee, ieie.

application filed hieren 1t, 191e. Serial No @what To all whom z't may 'concern Be it known that lf, STEPHEN CARPENTER, a citizen of the United States, residing at South Gibson, in the county. of Susquehanna and State of'lPennsylvania, have invented new and useful Improvements in Spring- Wheels, of which the following is a specification.

rThis invention relates to spring wheels, the object in view being to produce a wheel which will leliminate the necessity for using `a pneumatic tire, thereby also doing away with the troublesl incident to the use of a pneumatic tire, such -as punctures and blowouts.

The improved wheel emlbodies a novel construction and combination of parts including a special arrangement of oups of springs, the way of combining sai springs or res1l1 ent spokes with the hub and tread of the wheel and other novel features whereby a highly ecient and resilient wheel is produced that will `absorb all ordinary road shocks and vibrations and prevent the transmission of the same to the body of the ve- Other objects and advantages will be apparentas the nature of the invention is` bet- -ter understood, reference being had to the accompanying drawings, in which,

lEigure 1 is'a side elevation partly broken away in section of the improved wheel.'

Fig. 2 is a transverse section through the same.

3 is a fragmentary vertical section on the line 3-3 of `Fig. 2 but showing the spokes .in elevation.

Fig. Il is a detail perspective view of one of the spoke holding disks or hub sections.

Fig. 5 is a 'agmentary vertical longitudnal sectional view through the wheel showing the means for securing the spokes and A tread together.

` lEig. 6 is a fragmentary plan view of the tread.

7 is a sectional view similar to Fig. 5

`sho another way of securing the spokes Ad tread together.

' Fig-Sis an enlarged lfragmentary transi section through the tire and its suprtingstructure.

terrin to the drawings 1 designates the wheel mb, which, 'for the purposeof 'carrying out this invention, is provided, ad-

circumferjacent to one end thereofwith a which the ential Hangs or abutment 2 i l i n `spoke holding disks or members 3 each having an Opening 4: to receive the main body of the hub l and formed in the periphery and one side thereof with spoke holding slots 5 each of which is adapted to receive one of a number of resilient spokes or springs 6. Each disk or member` 3 preferably has a convex face 7 and concave side 8, the convex side of one disk fitting snugly against the Iconcave side of the adjacent disk. rl'he inner end of each spoke is made slightly flaring as shown at 9 so as to fill the respective slot 5 and therefore whenall of the spokesand members 3 are in their final clamped positions, the inner extremities of the spokes are prevented from escaping from the slots 5, the iconnection between each spoke and the respective holding member 3 being of a dove'- tailed character. One of the members 3 is clamped directly against the inner face of the flange 2. Again-st the outer face of the last member 3, there is placed a. clamping and 12 are located beyondthe flanges 10 and 2 and are adapted to clamp between them side flexible sheathing disks 13 of any suitable fleXible material which wiil prevent the admission of dust, dirt or other foreign matter to the space within which the springs or resilient spokes are contained. Tie bolts 14:

- extend through all of ,he members 3 as well as the members 2, 10, 11 and 12 and .serve to clamp all of said parts firmly together.

15 designates the tread of the wheel, the main body thereof being formed of resilient material such as rubber or rubber and fabric. lin conjunction with the tread 15 l employ series of diamond or other shaped traction or non-skid metal members 16 which are flanged and dished as shown, the outer edges thereof l in flush with the outer surface of the tread Securing means 'such as bolts 17 extend through the members 16 and also 'through holes in the outer extremities of the springs as best shown in Fig. 5. 'lhe tread 15 encircles the outer tread supporting band 18 the lbolts 17 passing therethrough, and also through exible or resilient washers 19 interposed between ythe outer ends of the spokes and the band 18.

Another way of securing the outer extremities of the spokes to the tread is shown in Fig. 7, in which I employ in connection with each spoke extremity a U-shaped clip having oppositely arranged inwardly eX- tending ears 21 which receive a pin 22 extending through an eye 23 formed at the drawings, the simplicity and advantages of the construction will be apparent, it is thought, without further detailed descri tion;

` aving thus described the invention, what Iclaim isz' 1. ln a resilient wheel, the combination of la hub, al tread, a Harige formed integrally with the.' main body of the hub and` surrounding the saine, a plurality of spoke holding disks encirclin said hub, a clamping collar encircling said hub, tie bolts extendingthrough said flange, collar and disks, a plurality of series of spring spokes rectangular in cross section and having their inner ends connected to said disks andhav# ing their outer extremities attached to the and its hold' vex meetingfaces and. being formed with .spoke receiving slots of progressively increasing width transversely of the hub and in an inward direction, and each of the spokes having a correspondingly flared iiiner end portion filling the respective slots of the adjacent disk, whereby a dovetailed connection is obtained between each spoke dis A 2, In a resilient wheel, the combination of a hub, a tread, a flange formed integrally with the main body of the hub and surrounding the same, a plurality of spoke holding disks encircling said hub, a clainping collar encircling said hub, tie bolts extending .through said ian e, collarand disks, a plurality of series o spring spokes having their inner ends connected to said disks and having their outer extremities attached to the tread, other clamping collars surrounding the body of the hub and receiving said tie bolts, and ilexible side sheathings extending from the tread to the-hub and clamped in place by the last named collars.

3. .In a sprin .wheel, the combination with a hub, a lexib e tread, spring spokes con necting the hub and tread, metal inserts seated in the tread, said inserts being of dished and aiiged formation, and fasteners inserted through said inserts and also through the adjacent outerpextremities of the spokes.

In testimony whereof l affix my signature.l

STEPHEN CARPENTER. 

